Vacuum cleaner



FIG. 1 is a front, right perspective view of a vacuum cleaner in accordance with our new design;

FIG. 2 is a rear, left perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a back elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right side elevation view thereof; and,

FIG. 8 is a left side elevation view thereof.

Broken lines show structure inside the transparent housing of the vacuum cleaner which forms no part of the claimed design. 

CLAIM The ornamental design for a vacuum cleaner, as shown and described. 